A Simple Activity Index for Short-period Geomagnetic Fluctuations

A SIMPLE ALGORITHM FOR COMPUTING DETOUR INDEX OF NANOCLUSTERS

Let G be the chemical graph of a molecule. The matrix D = [dij ] is called the detour matrix of G, if dij is the length of longest path between atoms i and j. The sum of all entries above the main diagonal of D is called the detour index of G. In this paper, a new algorithm for computing the detour index of molecular graphs is presented. We apply our algorithm on copper and silver nanoclusters ...

Lectures on Period-index Problems (short Version)

These are my notes for an April 24, 2006 lecture given at the Mathematical Sciences Research Institute on the subject of period-index problems. This is true in a literal sense: there is another, significantly more detailed, writeup available which was pared down to yield the current version. (So if you are seriously interested in these matters, you will want to be reading the other version inst...

Predicting Geomagnetic Activity Index by Brain Emotional Learning

The Emotional Learning Algorithm has been introduced to show the effect of emotions as well known stimuli in the quick and almost satisficing decision making in human. The remarkable properties of emotional learning, low computational complexity and fast training, and its simplicity in multi objective problems has made it a powerful methodology in real time control and decision systems, where t...

A simple clinical colitis activity index.

BACKGROUND The appropriate medical treatment of patients with ulcerative colitis is determined largely by the severity of symptoms. Hospital assessment of the severity of disease activity includes investigation of laboratory indices and sigmoidoscopic assessment of mucosal inflammation. AIMS To develop a simplified clinical colitis activity index to aid in the initial evaluation of exacerbati...

Geomagnetic Fields, their Fluctuations and Health Effects